A Child wants to reach the cookies on the top shelf of the kitchen. The shelf is 1.5 m high. The cookie jar has a mass of 0.75 kg. what is t

Question

A Child wants to reach the cookies on the top shelf of the kitchen. The shelf is 1.5 m high. The cookie jar has a mass of 0.75 kg. what is the potential energy of the cookie jar before it is taken from the shelf?

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Doris 6 months 2021-07-25T03:54:47+00:00 1 Answers 11 views 0

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    2021-07-25T03:56:30+00:00

    Answer:

    11.0325 J

    Step-by-step explanation:

    The formula for calculating Potential Energy is:

    P.E. = mass * acceleration due to gravity * height

    where mass is in kg

    acceleration due to gravity is a constant at the surface of the earth = 9.8 m/sec^2

    and height is in meters

    Here:

    P.E. = 0.75 kg * 9.8 meters/sec^2 * 1.5 meters

    P.E. = 11.0325 kg*m^2/sec^2

    Now kg*m^2/sec^2 = joules

    so the answer is 11.0325 joules

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